I was in a shop recently, a real bricks-and-mortar high street shop. I bought a magazine and the shopkeeper said “no, it’s free.” Free? He pointed to the walls of his shop, floor to ceiling advertisements.
“Everything in the shop is free. My income comes from the adverts.”
“Good for you,” I said before realising the doors were locked. “I can’t get out.”
“No,” said the shopkeeper. “You can only go when you’ve looked at all the adverts.”